Liquid ejecting apparatus

Details Liquid ejecting apparatus Liquid ejecting apparatus

2007-12-19

2011-10-11

Peng, Charlie (Department: 2883)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S093000

Reexamination Certificate

active

08033659

ABSTRACT:
A liquid ejecting head has a pressure chamber into which liquid flows from a liquid reservoir through a liquid passage, and a pressure generating unit operable to pressurize the liquid in the pressure chamber to eject the liquid through a nozzle opening. A gas trapping chamber is formed in the liquid passage and adapted to trap gas mixed in the liquid. A gas collecting chamber is formed adjacent to the gas trapping chamber. A gas permeable wall is interposed between the gas trapping chamber and the gas collecting chamber. A pressure difference generating unit is operable to generate a pressure difference between the gas trapping chamber and the gas collecting chamber so that a pressure in the gas collecting chamber is lower than a pressure in the gas trapping chamber, thereby collecting the gas trapped in the gas trapping chamber in the gas collecting chamber through the gas permeable wall.

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patent: 2003/0043244 (2003-03-01), Kaga et al.
patent: 2005/0157130 (2005-07-01), Inoue
patent: 2005/0264624 (2005-12-01), Ogura et al.
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patent: 2006-95878 (2006-04-01), None
patent: 2006-95878 (2006-04-01), None
patent: 2006-327097 (2006-12-01), None

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